Answer:
20cm
Step-by-step explanation:
the adjacent sides of a parallelogram are
6 cm and 4 cm
we know that In a parallelogram
opposite sides are equal.
so all sides are 6cm, 4 cm, 6 cm,4 cm
Perimeter of a parallelogram is sum of
all sides
= 4+6+4+6= 20 cm
